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Letteratura scientifica selezionata sul tema "Energy-generation methods"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 2 febbraio 2022

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Articoli di riviste sul tema "Energy-generation methods"

Wu, Shengyu, Bo Yuan e Songxu Xin. "Framework and Research Progress of Generation Energy Integrated Transport System Planning Methods in China". Journal of Clean Energy Technologies 5, n. 2 (2017): 154–58. http://dx.doi.org/10.18178/jocet.2017.5.2.361.

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Hix, W. Raphael, e Friedrich-Karl Thielemann. "Computational methods for nucleosynthesis and nuclear energy generation". Journal of Computational and Applied Mathematics 109, n. 1-2 (settembre 1999): 321–51. http://dx.doi.org/10.1016/s0377-0427(99)00163-6.

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Zengin, Namık, Fırat Aslan, Turan Can Artunç, Mehmet Emin Aktan e Ömer Faruk Güney. "DESIGN OF HYDROKINETIC ENERGY GENERATION SYSTEM". CBU International Conference Proceedings 4 (26 settembre 2016): 857–63. http://dx.doi.org/10.12955/cbup.v4.865.

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Along with technological developments and increasing population, people are in need of more energy sources. This need has led researchers to go towards new energy generation methods. One of these methods is hydrokinetic energy generation, which has been studied intensively in recent years. In this study, complete design of a hydrokinetic turbine that converts kinetic energy into mechanical and electrical energy with the most efficiency using tidal water is proposed. Moreover, an undershot water wheel system is designed to gain the least dissipationless conversion of kinetic energy. The design of the hydrokinetic energy generation system is developed considering the environmental and maintenance factors, maximum efficiency and buoyancy. Calculation for the velocity of the turbine is made by using Betz’s law, usually used for wind energy conversion systems. Conversion of obtained mechanical energy from the turbine to electrical energy is supplied by using a proper alternator system.

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Al-Nabulsi, Jamal, Sameh El-Sharo, Nicole Salawy e Halah Al-Doori. "Methods of energy generation from the human body: a literature review". Journal of Medical Engineering & Technology 43, n. 4 (19 maggio 2019): 255–72. http://dx.doi.org/10.1080/03091902.2019.1658818.

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Daiva, Stanelyte, Gudzius Saulius e Andriusiene Liudmila. "Energy Distribution Planning Models Taxonomy and Methods of Distributed Generation Systems". Energy Procedia 107 (febbraio 2017): 275–83. http://dx.doi.org/10.1016/j.egypro.2016.12.150.

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Miller, Lee M., Nathaniel A. Brunsell, David B. Mechem, Fabian Gans, Andrew J. Monaghan, Robert Vautard, David W. Keith e Axel Kleidon. "Two methods for estimating limits to large-scale wind power generation". Proceedings of the National Academy of Sciences 112, n. 36 (24 agosto 2015): 11169–74. http://dx.doi.org/10.1073/pnas.1408251112.

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Wind turbines remove kinetic energy from the atmospheric flow, which reduces wind speeds and limits generation rates of large wind farms. These interactions can be approximated using a vertical kinetic energy (VKE) flux method, which predicts that the maximum power generation potential is 26% of the instantaneous downward transport of kinetic energy using the preturbine climatology. We compare the energy flux method to the Weather Research and Forecasting (WRF) regional atmospheric model equipped with a wind turbine parameterization over a 105 km2 region in the central United States. The WRF simulations yield a maximum generation of 1.1 We⋅m−2, whereas the VKE method predicts the time series while underestimating the maximum generation rate by about 50%. Because VKE derives the generation limit from the preturbine climatology, potential changes in the vertical kinetic energy flux from the free atmosphere are not considered. Such changes are important at night when WRF estimates are about twice the VKE value because wind turbines interact with the decoupled nocturnal low-level jet in this region. Daytime estimates agree better to 20% because the wind turbines induce comparatively small changes to the downward kinetic energy flux. This combination of downward transport limits and wind speed reductions explains why large-scale wind power generation in windy regions is limited to about 1 We⋅m−2, with VKE capturing this combination in a comparatively simple way.

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G., Desai Prasad. "Frictionless Energy Generation using Flywheel". International Journal for Research in Applied Science and Engineering Technology 9, n. VI (30 giugno 2021): 4289–92. http://dx.doi.org/10.22214/ijraset.2021.35829.

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The intention of this project is to build a straight forward human powered generator from a used bicycle and to use it to power light bulbs, cell phones, laptops, and other small appliances. This project will help to develop engineering skills while learning about a clean way of generating electricity and satisfying our basic requirement. We are going to use the hard drive magnet and inductive coil to generate electricity due to which our mobile phone will be charge and followed by ac to dc converter. This is totally clean way of generating energy. As fuel is not a renewable energy source and the prices are increasing day by day. It will not be affordable by a common man after some period. Here no fuel is required to generate electricity, so everybody can afford this method for power generation also it eliminates the emission of CO2 which will reduces the pollution. Conventional methods for generating electricity make use of dynamo and wind turbine, but they have disadvantage that they produce friction and reduces speed which require more efforts. For the project to work we need strong electromagnets so we have used Neodymium magnets and also used coil. The basic idea of this project comes from the functioning of motor, that is how it rotates in the magnetic field and cut’s the magnetic line and how flux is introduced into the coil. The motivation behind the project is to generate electricity without having any friction and without using natural resources.

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Tanaka, Toru, Tomoya Aonuma, Kenji Natori e Yukihiko Sato. "Rectification Methods to Increase Harvested Energy in Vibration Generation Using Piezoelectric Elements". IEEJ Transactions on Industry Applications 136, n. 5 (2016): 346–54. http://dx.doi.org/10.1541/ieejias.136.346.

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TANAKA, TORU, TOMOYA AONUMA, KENJI NATORI e YUKIHIKO SATO. "Rectification Methods to Increase Harvested Energy in Vibration Generation Using Piezoelectric Elements". Electrical Engineering in Japan 199, n. 3 (16 gennaio 2017): 68–79. http://dx.doi.org/10.1002/eej.22958.

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Manfren, Massimiliano, Paola Caputo e Gaia Costa. "Paradigm shift in urban energy systems through distributed generation: Methods and models". Applied Energy 88, n. 4 (aprile 2011): 1032–48. http://dx.doi.org/10.1016/j.apenergy.2010.10.018.

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Più fonti

Tesi sul tema "Energy-generation methods"

Butcher, Thomas J. "Methods for increased energy and flux in high harmonic generation". Thesis, University of Southampton, 2012. https://eprints.soton.ac.uk/336262/.

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High harmonic generation (HHG) is a nonlinear light matter interaction that results in the generation of high order harmonics of a driving optical field. It is routinely used to generate coherent short wavelength radiation in the soft x-ray and extreme ultraviolet (XUV) regimes. HHG-based XUV sources require a highly intense driving pulse to be focused into a target gas typically within a gas cell, gas jet or hollow capillary. They can be used for a variety of applications, one of which is nanoscale imaging. The work presented in this thesis focuses on the development of two high flux HHG sources for use in tabletop nanoscale imaging; a capillary based HHG system using a Ti:Sapphire based laser and a gas cell based HHG system using an Yb-doped fibre laser. The manufacture and use of a 7 cm hollow core capillary in HHG is described. The propagation of the pump pulse is modelled using a new nonlinear propagation model and compared to experimental results. The pulse is found to undergo pulse self-compression using a new regime of high ionisation pulse compression. The pulse is observed to reduce in length from 53 fs to 28 fs, with post compression reducing this further to 15 fs. The XUV spectrum from the 7 cm capillary is measured and its dependence on gas pressure discussed using calculations of the XUV transmission within the capillary. Using the observations made of the 7 cm capillary a new more efficient 4.5 cm capillary is designed and manufactured. Comparison between the two capillaries shows an increase in flux of the new capillary design of more than an order of magnitude, with a calculated value of 5.3x10^12 ph harm^-1 s^-1 cm^-2, one of the highest in the world. A gas cell is used in the Yb-doped fibre laser based HHG source and the XUV signal is measured using an XUV photodiode. The XUV signal is characterised by measuring its dependence on focal position, gas pressure and pump laser power. A novel method of increasing the flux by twisting of a second lens outside the vacuum chamber is discovered and was found to double the measured signal. The maximum flux for this fibre laser based HHG source is calculated and found to be 2.2x10^12 ph s^-1, the highest measured for a fibre based HHG source.

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Sahu, Siddharth. "Optimizing methods and materials for maximizing energy recovery and energy generation in the Capacitive Double Layer Expansion cycle". Thesis, KTH, Tillämpad fysik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-266819.

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Sanjab, Anibal Jean. "Statistical Analysis of Electric Energy Markets with Large-Scale Renewable Generation Using Point Estimate Methods". Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/74356.

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The restructuring of the electric energy market and the proliferation of intermittent renewable-energy based power generation have introduced serious challenges to power system operation emanating from the uncertainties introduced to the system variables (electricity prices, congestion levels etc.). In order to economically operate the system and efficiently run the energy market, a statistical analysis of the system variables under uncertainty is needed. Such statistical analysis can be performed through an estimation of the statistical moments of these variables. In this thesis, the Point Estimate Methods (PEMs) are applied to the optimal power flow (OPF) problem to estimate the statistical moments of the locational marginal prices (LMPs) and total generation cost under system uncertainty. An extensive mathematical examination and risk analysis of existing PEMs are performed and a new PEM scheme is introduced. The applied PEMs consist of two schemes introduced by H.P. Hong, namely, the 2n and 2n+1 schemes, and a proposed combination between Hong's and M. E Harr's schemes. The accuracy of the applied PEMs in estimating the statistical moments of system LMPs is illustrated and the performance of the suggested combination of Harr's and Hong's PEMs is shown. Moreover, the risks of the application of Hong's 2n scheme to the OPF problem are discussed by showing that it can potentially yield inaccurate LMP estimates or run into unfeasibility of the OPF problem. In addition, a new PEM configuration is also introduced. This configuration is derived from a PEM introduced by E. Rosenblueth. It can accommodate asymmetry and correlation of input random variables in a more computationally efficient manner than its Rosenblueth's counterpart.
Master of Science

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Li, Haocheng. "Modeling and Control of Kite Energy Systems". Digital WPI, 2018. https://digitalcommons.wpi.edu/etd-dissertations/532.

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Kite energy systems are an emerging renewable energy technology. Unlike conventional turbines, kite energy systems extract wind power using tethered kites which can move freely in the wind or underwater in an ocean current. Due to the mobility, kite power systems can harvest power from regions with higher and steadier power density by moving in high-speed cross flow motion. An airborne kite energy system harnesses wind power at an altitude higher than the conventional wind turbines, while an undersea kite energy system extracts power close to the ocean surface. In this dissertation, the physical limitation, mathematical modeling, and control system design of the kite energy systems are studied. First, three major physical effects that are acting on the kite energy systems are investigated, including potential force, steady aero-/hydro-dynamic force and added mass effects. Furthermore, the dissipativity of the steady aero-/hydro-dynamic forces with respect to the apparent velocity is established. Based on this analysis, the power generation limit of the kite energy systems is studied. A power limit formulation is given which generalize the two-dimensional result to three-dimensional case. The different physical phenomenon is modeled in different coordinate systems, the difference of the density, viscosity between air and water are significant, and the kite energy system can operate in two distinct modes. To combine different physical effects into a single simulation framework, the equivalences of the kite model in different coordinate systems are established through kinematic analysis. Using these equivalent relations, a unified simulation model for airborne and undersea kite energy systems are derived. The control system design of kite energy systems is also investigated. The resulting equations of motion of kite energy systems are highly nonlinear. Therefore, Lyapunov methods are used to analyze the system behavior. Three different techniques are reviewed, including Lyapunov analysis for autonomous and non-autonomous systems, the ultimate boundedness and input-to-state stability and passivity methods. For the fixed tether length kite energy systems, the ultimate boundedness of the kite translation is established through the dissipativity of the steady aero-/hydro-dynamic force. For the variable tether length kite energy system, the input-to-state analysis is used to design the tether tension that guaranteed the boundedness of the kite translation. In both cases, the Lyapunov based methods are used to design kite rotational control systems which result in PD type control signals. Although this control scheme generates consecutive power cycles for kite energy systems. It is shown that the kite aero-/hydro-dynamical performance is unstable in the simulation which could result in unsteady power generation. To provide a steadier performance in kite translation and power output, the relative dynamics of the kite translation is first proposed. In this model, the kite apparent speed and attitudes, the angle of attack and side-slip angle, are used to describe the kite translation. A nonlinear control scheme is designed to regulate the angle of attack and side-slip angle using back-stepping methods by using the kite angular velocity and control inputs. However, due to the magnitude limit of the angular velocity, the residual error of the apparent attitude tracking remain large for the large desired angle of attack and side-slip angle. To achieve a better power harvesting and aero-/hydro-dynamics performance, the geometric properties of kite angle of attack and side-slip angle are studied. A geometric attitudes trajectory is constructed to track given apparent attitudes. A rotational control system is designed based on the back-stepping and sliding mode methods for the desired geometric attitude, and the high gain observer is applied to acquire the information needed for the rotational control signal. Through the geometric apparent attitudes tracking control algorithm, the angle of attack and side-slip angle act as direct control inputs to the kite translational motion. The kite translational dynamics under the geometric apparent attitude tracking is studied. These dynamics give the possibility of controlling the kite translational motion only through the rotational control scheme.

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Xu, Ke. "INTELLIGENT METHODS FOR OPTIMUM ONLINE ADAPTIVE COORDINATION OF OVERCURRENT RELAYS". UKnowledge, 2018. https://uknowledge.uky.edu/ece_etds/127.

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During the operation in a modern power distribution system, some abnormal events may happen, such as over-voltage, faults, under-frequency and overloading, and so on. These abnormal events may cause a power outage in a distribution system or damages on the equipment in a distribution system. Hence these abnormal events should be identified and isolated by protection systems as quickly as possible to make sure we can maintain a stable and reliable distribution system to supply adequate electric power to the largest number of consumers as we can. To sum up, we need stable and reliable protection systems to satisfy this requirement. Chapter 1 of the dissertation is a brief introduction to my research contents. Firstly, the background of a distribution system and the protection systems in a power system will be introduced in the first subchapter. Then there will be a review of existing methods of optimum coordination of overcurrent relays using different optimal techniques. The dissertation outline will be illustrated in the end. Chapter 2 of the dissertation describes a novel method of optimum online adaptive coordination of overcurrent relays using the genetic algorithm. In this chapter, the basic idea of the proposed methods will be explained in the first subchapter. It includes the genetic algorithm concepts and details about how it works as an optimal technique. Then three different types of simulation systems will be used in this part. The first one is a basic distribution system without distributed generations (DGs); the second one is similar to the first one but with load variations; the last simulation system is similar to the first one but with a distributed generation in it. Using three different simulation systems will demonstrate that the coordination of overcurrent relays is influenced by different operating conditions of the distribution system. In Chapter 3, a larger sized distribution system with more distributed generations and loads will be simulated and used for verifying the proposed method in a more realistic environment. In addition, the effects of fault location on the optimum coordination of overcurrent relays will be discussed here. In Chapter 4, the optimal differential evolution (DE) technique will be introduced. Because of the requirement of the online adaptive function, the optimal process needs to be accomplished as soon as possible. Through the comparison between genetic algorithm and differential evolution on the optimum coordination of overcurrent relays, we found that differential evolution is much faster than the genetic algorithm, especially when the size of the distribution system grows. Therefore, the differential evolution optimal technique is more suited than the genetic algorithm to realize online adaptive function. Chapter 5 presents the conclusion of the research work that has been done in this dissertation.

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Nilsson, Daniel. "Analysis and simulation of systems for delivery of fuel straw to district heating plants /". Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 1999. http://epsilon.slu.se/avh/1999/91-576-5721-1.pdf.

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Jabr, Rabih Adel. "Interior-point methods for power generation dispatching". Thesis, Imperial College London, 2000. http://hdl.handle.net/10044/1/8428.

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Torrent-Fontbona, Ferran. "Optimisation methods meet the smart grid. New methods for solving location and allocation problems under the smart grid paradigm". Doctoral thesis, Universitat de Girona, 2015. http://hdl.handle.net/10803/301440.

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The smart grid offers a new infrastructure for the management of energy demand and generation towards a sustainable future. Accordingly, there is the objective to provide consumers with a response capacity to stimuli of the electricity market, and at the same time, to efficiently manage the generation system which tends to a diversification of the generators and the energy sources. For that purpose, this thesis is first focused on providing to consumers methods for managing their energy consumption and then reducing costs according to their production activities. Next, this thesis focuses on electricity generation, tackling the problem of how to share out energy production among a set of distributed generators using self-organisation. Finally, it tackles the problem of planning the placement of new generators suing meta-heuristics.
La xarxa elèctrica intel·ligent ofereix una nova infraestructura per a la gestió de la demanda i generació d'electricitat cap a un futur més sostenible. En aquest sentit, hi ha l'objectiu de proveir els consumidors de capacitat de reacció davant d'estímuls del mercat elèctric i, al mateix temps, gestionar de forma eficient un sistema de generació que tendeix cap a una diversificació. Amb aquest objectiu, aquesta tesi primer es centra a desenvolupar mètodes perquè els consumidors puguin gestionar els seus consums i així també reduir-ne els costos d'acord amb les seves activitats de producció. Posteriorment, la tesi es centra en la generació elèctrica abordant el problema de com repartir la producció d'energia d'entre un conjunt de generadors distribuïts utilitzant mètodes auto-organitzatius. Finalment, s'aborda la planificació de nous generadors utilitzant mètodes metaheurístics.

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Gu, Patrick. "Advanced Nonlinear Control and Estimation Methods for AC Power Generation Systems". Thesis, Southern Illinois University at Edwardsville, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10263630.

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Due to the increased demand for reliable and resilient controls in advanced power generation systems, new control methods are required to tackle traditional problems within these systems. This work discusses a control method and an estimation method for advanced control systems. The control method is sliding mode controls of a higher order, which is used to control the nonlinear wind energy conversion system while lessening the chattering phenomena that causes mechanical wear when using first order sliding mode controls. The super-twisting algorithm is used to create a second order sliding mode control. The estimation method is the derivation of a Resilient Extended Kalman filter, which can estimate and control the system through sensor undergoing failures with a binomial distribution rate and known mean value. Simulations on these dynamical systems are presented to show the effectiveness of the proposed control methods; the former is applied to a wind energy conversion system and the latter is applied to an single machine infinite bus. Both methods are also compared with more traditional methods in their respective applications, those being first order sliding mode controls and the Extended Kalman filter.

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Topal, Emre Tan. "A Mems Thermoelectric Energy Harvester For Energy Generation In Mobile Systems". Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613636/index.pdf.

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In this thesis design, optimization, fabrication and performance characterization of MEMS thermoelectric (TE) energy harvesters for harnessing waste heat in mobile systems are presented. As a proof of concept, chromium and nickel are used as the thermoelectric material in the proposed design. The feasibility of the state of the art thermoelectric materials is also discussed. MEMS TE energy harvesters proposed in this study are designed to generate power at relatively lower &Delta
T values. The performance of the MEMS TE energy harvesters was optimized using analytical and 3-D finite element models. An analytical code was used for profiling the electrical power output with varying geometry. The design points with maximum generated power were selected, and the microfabricated thermoelectric energy harvesters were designed accordingly. The fabricated devices are formed on a silicon wafer and composed of Nickel and Chromium thermocouples on SiO2/Si3N4 diaphragms, and Titanium heater and monitor resistors for testing purposes. Microfabrication was followed by the performance characterization of MEMS TE energy harvesters with the conducted tests. For 10 °
C temperature difference between the hot and cold junctions (a heat source at 35 °
C), the proposed TE energy harvesters are capable of providing 1.1 µ
W/cm2 power density and 1.71 V voltage. The performance of the thermoelectric generators in general is limited by Carnot cycle efficiency. Nevertheless, the validated practical performance of MEMS TE energy harvesters proposed in this thesis is comparable to other examples in literature. It is anticipated by the calculations that this design will be able to provide the highest thermoelectric efficiency factor (4.04 µ
W/K2cm2) among the lateral TE energy harvesters if thermoelectric materials having high Seebeck coefficient values (such as p-Si, n-Si, polysilicon, Bi2Te3 etc.) are used. According to the performance results, the MEMS TE energy harvesters can be implemented in mobile systems to convert waste heat into electricity. The fabrication process can be adapted to CMOS with some modifications if needed. The lateral MEMS thermoelectric energy harvesters can also be combined with vibration energy harvesters to realize multi-mode energy scavenging. For prospective study, vertical thermoelectric generator configurations are also discussed in order to further increase the power density generated. The finite element simulations for proposed vertical configurations with air and water convection were completed. The vertical TE generators proposed can supply up to 4.2 mW/cm2 with a heat source at a temperature of 310 K.

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Più fonti

Libri sul tema "Energy-generation methods"

Arif, Hepbasli, a cura di. Compound energy systems: Optimal operation methods. Cambridge: Royal Society of Chemistry, 2010.

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Sidorenko, Oleg. Biological systems in the processing of secondary products and agricultural waste. ru: INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/1102076.

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The manual describes technologies for processing secondary products and agricultural waste using macro-and micro-organisms. The regulations of modern biotechnologies of microbial synthesis, bioconversion of secondary raw materials are briefly presented, methods of its processing and characteristics of the obtained target products of bioconversion are described. Practical classes introduce students to modern methods of improving environmental quality and production waste from commercial products (organic fertilizers, bacterial preparations, feed additives, etc.), as well as obtain the cheapest fuel and energy resources (biogas, alcohols, acids, liquid biofuels, etc.). Meets the requirements of Federal state educational standards of higher education of the last generation. It is intended for students of higher educational institutions of technological specialties.

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Nazarov, Vyacheslav, Roman Sandu e Dmitriy Makarenkov. Technique and technology of combined processing of solid waste. ru: INFRA-M Academic Publishing LLC., 2020. http://dx.doi.org/10.12737/996365.

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The educational manual provides information about industrial and domestic waste. The properties of the lithosphere and the soil components. The estimation of soil pollution by industrial and household waste. The peculiarities of classification of wastes and provides criteria for determining risk. Describe the General pattern of the combined methods of processing that use mechanical, physical, thermal and biothermal recycling processes. In detail the construction described granulating equipment, methods of intensification of processes, process flow sheets and engineering calculation methods. Special attention is given to the thermal methods of waste treatment, process lines, constructions of furnaces and reactors. On the basis of the system approach with use of data of environmental monitoring are considered the methodology for selecting the most available technology. Meets the requirements of Federal state educational standards of higher education of the last generation. Intended for independent work of undergraduates majoring in 20.04.01 "Technospheric safety" (master level), 20.03.01 "Technosphere safety" (bachelor level), 18.03.01 "Chemical technology" 18.03.02 "Energy and resource saving processes in chemical technology, petrochemistry and biotechnology". Can be useful for engineers and technicians of chemical industry and related industries.

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Serebryakov, Andrey, e Gennadiy Zhuravlev. Exploitation of oil and gas fields by horizontal wells. ru: INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/971768.

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The textbook describes the design features of offshore horizontal multi-hole production wells, as well as the bottom-hole components of horizontal multi-hole wells. The classification of complications of multi-hole horizontal wells, methods of their prevention and elimination are given. Methods of underground geonavigation of the development of offshore horizontal production wells are proposed. The geological and field bases of operation of horizontal offshore multi-hole oil and gas wells, modes and dynamics of oil, gas and associated water production, methods for calculating dynamic bottom-hole and reservoir pressures are specified. The technologies of operation of offshore horizontal multi-hole wells are presented. The composition and scope of environmental, field and research marine monitoring of the operation of offshore horizontal multi-hole wells and the protection of the marine environment in the production of oil and gas are justified. Meets the requirements of the federal state educational standards of higher education of the latest generation. It is intended for undergraduates of the enlarged group of "Earth Sciences" training areas, as well as for teachers, employees of the fuel and energy complex, industrial geological exploration and oil and gas production enterprises, scientific and design organizations.

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Yudaev, Vasiliy. Hydraulics. ru: INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/996354.

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The textbook corresponds to the general education programs of the general courses "Hydraulics" and "Fluid Mechanics". The basic physical properties of liquids, gases, and their mixtures, including the quantum nature of viscosity in a liquid, are described; the laws of hydrostatics, their observation in natural phenomena, and their application in engineering are described. The fundamentals of the kinematics and dynamics of an incompressible fluid are given; original examples of the application of the Bernoulli equation are given. The modes of fluid motion are supplemented by the features of the transient flow mode at high local resistances. The basics of flow similarity are shown. Laminar and turbulent modes of motion in pipes are described, and the classification of flows from a creeping current to four types of hypersonic flow around the body is given. The coefficients of nonuniformity of momentum and kinetic energy for several flows of Newtonian and non-Newtonian fluids are calculated. Examples of solving problems of transient flows by hydraulic methods are given. Local hydraulic resistances, their use in measuring equipment and industry, hydraulic shock, polytropic flow of gas in the pipe and its outflow from the tank are considered. The characteristics of different types of pumps, their advantages and disadvantages, and ways of adjustment are described. A brief biography of the scientists mentioned in the textbook is given, and their contribution to the development of the theory of hydroaeromechanics is shown. The four appendices can be used as a reference to the main text, as well as a subject index. Meets the requirements of the federal state educational standards of higher education of the latest generation. For students of higher educational institutions who study full-time, part-time, evening, distance learning forms of technological and mechanical specialties belonging to the group "Food Technology".

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Blaha, Stephen. The origin of the standard model: The genesis of four quark and lepton species, parity violation, the electro weak sector, color SU(3), three visible generations of fermions, and one generation of dark matter with dark energy ; Quantum theory of the third kind : a new type of divergence-free quantum field theory supporting a unified standard model of elementary particles and quantum gravity based on a new method in the calculus of variations. Auburn, NH: Pingree-Hill Publishing, 2006.

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Materials for Solar Cell Technologies I. Materials Research Forum LLC, 2021. http://dx.doi.org/10.21741/9781644901090.

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The book reviews recent research and new trends in the area of solar cell materials. Topics include fabrication methods, solar cell design, energy efficiency and commercialization of next-generation materials. Special focus is placed on graphene and carbon nanomaterials, graphene in dye-sensitized solar cells, perovskite solar cells and organic photovoltaic cells, as well as on transparent conducting electrode (TCE) materials, hollow nanostructured photoelectrodes, monocrystalline silicon solar cells (MSSC) and BHJ organic solar cells. Also discussed is the use of graphene, sulfides, and metal nanoparticle-based absorber materials.

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Capitoli di libri sul tema "Energy-generation methods"

Effatnejad, Reza, Mahdi Hedayati, Keyvan Choopani e Milad Chanddel. "Numerical Methods in Selecting Location of Distributed Generation in Energy Network". In Numerical Methods for Energy Applications, 935–76. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-62191-9_34.

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Kelényi, Imre, Jukka K. Nurminen, Matti Siekkinen e László Lengyel. "Supporting Energy-Efficient Mobile Application Development with Model-Driven Code Generation". In Advanced Computational Methods for Knowledge Engineering, 143–56. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-06569-4_11.

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Drapkin, Dimitri, Ralf Gollmer, Uwe Gotzes, Frederike Neise e Rüdiger Schultz. "Risk Management with Stochastic Dominance Models in Energy Systems with Dispersed Generation". In Stochastic Optimization Methods in Finance and Energy, 253–71. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-9586-5_12.

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Chen, Xin, Qingan Qiao e Fan Li. "Application of DFT Methods to Investigate Activity and Stability of Oxygen Reduction Reaction Electrocatalysts". In Nanostructured Materials for Next-Generation Energy Storage and Conversion, 337–58. Berlin, Heidelberg: Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-56364-9_11.

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Al Dhaheri, Khawla, Wei Lee Woon e Zeyar Aung. "Wind Speed Forecasting Using Statistical and Machine Learning Methods: A Case Study in the UAE". In Data Analytics for Renewable Energy Integration: Informing the Generation and Distribution of Renewable Energy, 107–20. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-71643-5_10.

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Kumar, Nagendra, Mohit Bansal, Shivendra Kaura e Priyanka Datta. "Load Frequency Control in Deregulated-Hybrid Power System Integrated with Energy Generation/Storage System". In Computational and Experimental Methods in Mechanical Engineering, 275–86. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2857-3_28.

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Peacock, Malcolm, Aikaterini Fragaki e Bogdan J. Matuszewski. "Review of Heat Demand Time Series Generation for Energy System Modelling". In Springer Proceedings in Energy, 53–60. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-63916-7_7.

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AbstractNational heat demand time series are important inputs into national energy system models. Although time series for primary fuel such as gas might be available, heat demand is not and measuring heat demand is only possible for individual buildings. Four different methods are used in this work to generate daily heat demand time series for Great Britain for 2016–2018 from temperature and windspeed and are validated against heat demand derived from national grid gas demand. All seem to model heat demand well.

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Mwanza, Mabvuto, e Koray Ulgen. "GIS-Based Assessment of Solar Energy Harvesting Sites and Electricity Generation Potential in Zambia". In African Handbook of Climate Change Adaptation, 1–48. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-42091-8_60-1.

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AbstractLand and environment are some of limited nature resource for any particular country and requires best use. Therefore, for sustainable energy generation it is often important to maximize land use and avoid or minimize environmental and social impact when selecting the potential locations for solar energy harvesting. This chapter presents an approach for identifying and determining the potential sites and available land areas for solar energy harvesting. Hence, the restricting and enhancing parameters that influence sites selection based on international regulation have been imposed to the Laws of Zambia on environmental protection and pollution control legislative framework. Thus, both international regulations and local environmental protection and pollution control legislative have been used for identifying the potential sites and evaluating solar PV electricity generation potential in these potential sites. The restricting parameters were applied to reduce territory areas to feasible potential sites and available areas that are suitable for solar energy harvesting. The assessment involved two different models: firstly the assessment of potential sites and mapping using GIS, and secondly, evaluation of the available suitable land areas and feasible solar PV electricity generation potential in each provinces using analytical methods. The total available suitable area of the potential sites is estimated at 82,564.601 km2 representing 10.97% of Zambia’s total surface area. This potential is equivalent to 10,240.73 TWh annual electricity generation potential with potential to reduce CO2 emissions in the nation and achieve SDGs. The identification of potential sites and solar energy will help improve the understanding of the potential solar energy can contribute to achieving sustainable national energy mix in Zambia. Furthermore, it will help the government in setting up tangible energy targets and effective integration of solar PV systems into national energy mix.

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Mwanza, Mabvuto, e Koray Ulgen. "GIS-Based Assessment of Solar Energy Harvesting Sites and Electricity Generation Potential in Zambia". In African Handbook of Climate Change Adaptation, 899–946. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-45106-6_60.

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Washizu, Ayu, e Satoshi Nakano. "An Assessment of Carbon Taxation by Input–Output Analysis: Upstream or Downstream?" In Economics, Law, and Institutions in Asia Pacific, 151–79. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-6964-7_9.

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Abstract To analyze the ripple effects of CO2 emissions from the introduction of renewable energy power plants, this study developed input–output tables for analysis of next-generation energy systems (IONGES). The results revealed that the environmental benefits obtained from investing in power plants of the same capacity vary significantly depending on the type of renewable energy. Using the IONGES, under assumptions of three carbon taxation methods (upstream, midstream, and downstream), we calculated the taxable CO2 emissions induced when producing each good or service and estimated the carbon tax burden associated with the final demand. We found that, in the upstream method, the taxation effects of one unit of carbon tax is concentrated in energy goods such as coal products and petroleum basic, while the effects are relatively dispersed in the downstream taxation method. If renewable energy is added to the government target level in 2030, taxable CO2 emissions will decrease by 12–13.3%. Compared with the upstream taxation method, in the midstream and downstream methods, the CO2 emissions induced by each final demand are distributed more evenly across various goods and services. Compared to the downstream taxation method, upstream taxation leads to higher CO2 emissions from exports, but lower CO2 emissions from household consumption. This is because energy-intensive industries such as machinery have high export ratios. We analyzed which expenditure categories contribute to the carbon tax burden associated with household consumption. In the case of upstream taxation, households mainly focus on reducing electricity consumption; in the case of downstream taxation, households reduce consumption of various energy-intensive goods and services.

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Atti di convegni sul tema "Energy-generation methods"

Koivisto, Matti, Nicolaos Cutululis e Jussi Ekstrom. "Minimizing Variance in Variable Renewable Energy Generation in Northern Europe". In 2018 IEEE International Conference on Probabilistic Methods Applied to Power Systems (PMAPS). IEEE, 2018. http://dx.doi.org/10.1109/pmaps.2018.8440369.

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Khubbutdinov, Ruslan, Alexey Menushenkov e Ivan Vartaniants. "Coherence properties of the 4th generation high-energy X-ray synchrotron sources." In Advances in Computational Methods for X-Ray Optics V, a cura di Kawal Sawhney e Oleg Chubar. SPIE, 2020. http://dx.doi.org/10.1117/12.2567635.

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Atla, Chandra Shekhar Reddy, e K. Balaraman. "Generation planning with intermittent renewable energy sources using probabilistic methods". In 2012 2nd International Conference on Power, Control and Embedded Systems (ICPCES). IEEE, 2012. http://dx.doi.org/10.1109/icpces.2012.6508062.

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Zhu, Dinghuan, e Gabriela Hug-Glanzmann. "Decomposition methods for stochastic optimal coordination of energy storage and generation". In 2014 IEEE Power & Energy Society General Meeting. IEEE, 2014. http://dx.doi.org/10.1109/pesgm.2014.6939490.

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Kittithreerapronchai, Oran, Panida Jirutitijaroen, Sujin Kim e Jose Prina. "Optimizing natural gas supply and energy portfolios of a generation company". In 2010 IEEE 11th International Conference on Probabilistic Methods Applied to Power Systems (PMAPS). IEEE, 2010. http://dx.doi.org/10.1109/pmaps.2010.5528265.

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Akdag, Seyit Ahmet, Onder Guler e Emre Yagci. "Wind speed extrapolation methods and their effect on energy generation estimation". In 2013 International Conference on Renewable Energy Research and Applications (ICRERA). IEEE, 2013. http://dx.doi.org/10.1109/icrera.2013.6749793.

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Mills, Andrew B., Daniel Kim e Eric W. Frew. "Energy-Aware Aircraft Trajectory Generation Using Pseudospectral Methods with Differential Flatness". In 2017 IEEE Conference on Control Technology and Applications (CCTA). IEEE, 2017. http://dx.doi.org/10.1109/ccta.2017.8062675.

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Bracale, A., P. Caramia, F. Mottola, G. Carpinelli e D. Proto. "Probabilistic Sizing of Battery Energy Storage System in Presence of Renewable Generation". In 2018 IEEE International Conference on Probabilistic Methods Applied to Power Systems (PMAPS). IEEE, 2018. http://dx.doi.org/10.1109/pmaps.2018.8440317.

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Papic, M., J. Ellsworth, A. Valdepena Delgado, E. Schellenberg, G. Travis e G. Preston. "Adequacy Assessment of the Idaho Power Generation System with Integrated Variable Energy Sources". In 2020 International Conference on Probabilistic Methods Applied to Power Systems (PMAPS). IEEE, 2020. http://dx.doi.org/10.1109/pmaps47429.2020.9183653.

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Henao-Munoz, Andres Camilo, Andres Julian Saavedra-Montes e Carlos Andres Ramos-Paja. "Energy management system for an isolated microgrid with photovoltaic generation". In 2017 14th International Conference on Synthesis, Modeling, Analysis and Simulation Methods and Applications to Circuit Design (SMACD). IEEE, 2017. http://dx.doi.org/10.1109/smacd.2017.7981571.

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Rapporti di organizzazioni sul tema "Energy-generation methods"

Takita, Yoshiharu, Shohei Kono e Atsumu Naoi. Study of Methods to Enhance Energy Utilization Efficiency of Micro Combined Heat and Power Generation Unit-Equipped with an Extended Expansion Linkage Engine and Reduction of Waste Energy. Warrendale, PA: SAE International, novembre 2011. http://dx.doi.org/10.4271/2011-32-0574.

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Vas, Dragos, Steven Peckham, Carl Schmitt, Martin Stuefer, Ross Burgener e Telayna Wong. Ice fog monitoring near Fairbanks, AK. Engineer Research and Development Center (U.S.), marzo 2021. http://dx.doi.org/10.21079/11681/40019.

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Ice fog events, which occur during the Arctic winter, result in greatly decreased visibility and can lead to an increase of ice on roadways, aircraft, and airfields. The Fairbanks area is known for ice fog conditions, and previous studies have shown these events to be associated with moisture released from local power generation. Despite the identified originating mechanism of ice fog, there remains a need to quantify the environmental conditions controlling its origination, intensity, and spatial extent. This investigation focused on developing innovative methods of identifying and characterizing the environmental conditions that lead to ice fog formation near Fort Wainwright, Alaska. Preliminary data collected from December 2019 to March 2020 suggest that ice fog events occurred with temperatures below −34°C, up to 74% of the time ice fog emanated from the power generation facility, and at least 95% of ice particles during ice fog events were solid droxtals with diameters ranging from 7 to 50 μm. This report documents the need for frequent and detailed observations of the meteorological conditions in combination with photographic and ice particle observations. Datasets from these observations capture the environmental complexity and the impacts from energy generation in extremely cold weather conditions.

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Nagy, Peter. Investigation of a Novel NDE Method for Monitoring Thermomechanical Damage and Microstructure Evolution in Ferritic-Martensitic Steels for Generation IV Nuclear Energy Systems. Office of Scientific and Technical Information (OSTI), settembre 2013. http://dx.doi.org/10.2172/1097004.

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Rusk, Todd, Ryan Siegel, Linda Larsen, Tim Lindsey e Brian Deal. Technical and Financial Feasibility Study for Installation of Solar Panels at IDOT-owned Facilities. Illinois Center for Transportation, agosto 2021. http://dx.doi.org/10.36501/0197-9191/21-024.

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The Smart Energy Design Assistance Center assessed the administrative, technical, and economic aspects of feasibility related to the procurement and installation of photovoltaic solar systems on IDOT-owned buildings and lands. To address administrative feasibility, we explored three main ways in which IDOT could procure solar projects: power purchase agreement (PPA), direct purchase, and land lease development. Of the three methods, PPA and direct purchase are most applicable for IDOT. While solar development is not free of obstacles for IDOT, it is administratively feasible, and regulatory hurdles can be adequately met given suitable planning and implementation. To evaluate IDOT assets for solar feasibility, more than 1,000 IDOT sites were screened and narrowed using spatial analytic tools. A stakeholder feedback process was used to select five case study sites that allowed for a range of solar development types, from large utility-scale projects to small rooftop systems. To evaluate financial feasibility, discussions with developers and datapoints from the literature were used to create financial models. A large solar project request by IDOT can be expected to generate considerable attention from developers and potentially attractive PPA pricing that would generate immediate cash flow savings for IDOT. Procurement partnerships with other state agencies will create opportunities for even larger projects with better pricing. However, in the near term, it may be difficult for IDOT to identify small rooftop or other small on-site solar projects that are financially feasible. This project identified two especially promising solar sites so that IDOT can evaluate other solar site development opportunities in the future. This project also developed a web-based decision-support tool so IDOT can identify potential sites and develop preliminary indications of feasibility. We recommend that IDOT begin the process of developing at least one of their large sites to support solar electric power generation.

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